Audi A4 B8.5 2.0 TDI Coolant Water Hose Pipe 03L121157AH 2012-2016
Audi A4 B8.5 2.0 TDI Coolant Water Hose Pipe 03L121157AH 2012-2016
Audi A4 B8.5 2.0 TDI Coolant Hose Pipe 03L121157AH 2012-2016
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Listing Title Copy Area
Product Overview
What this part does
This coolant hose / coolant pipe routes coolant through the engine cooling circuit and helps maintain correct operating temperature. On 2.0 TDI applications, this type of hose is commonly associated with the cooling circuit around the engine and exhaust gas cooler area.
Typical fault symptoms include coolant loss, visible leaks, pressure loss, overheating, low heater output, smell of coolant, warning lights, and temperature instability.
Why buyers choose original used parts
- Lower cost than buying new
- Factory fit and connector shape
- Less risk than cheap pattern copies
- Good option for older vehicles where new stock is limited
A used original part can often save a significant amount versus new, depending on market and condition.
Exact Fitment Guidance
| Vehicle range | Fitment note | Source basis |
|---|---|---|
| Audi A4/S4/Avant/quattro B8 facelift | 2012-2016 global; 2013-2015 USA | Public Audi catalog references for A4 B8 facelift |
| Audi A4 allroad quattro | 2010-2016 regional catalogue reference | Cross-market OE listing reference |
| Audi Q5 | 2009-2012 and 2013-2017 regional catalogue references | Cross-market OE listing reference |
| Audi A6/S6 Avant quattro | 2011-2014 regional catalogue reference | Cross-market OE listing reference |
| Audi A5/S5 Coupe/Sportback | 2012-2016 regional catalogue reference | Cross-market OE listing reference |
| Audi A5/S5 Cabriolet | 2012-2017 regional catalogue reference | Cross-market OE listing reference |
| SEAT Exeo/ST | 2009-2014 regional catalogue reference | Cross-market OE listing reference |
Fitting Instructions, Tools and Time
Basic fitting steps
- Let the engine cool fully before starting.
- Drain coolant as required and protect surrounding components.
- Release hose clips and remove the old hose carefully.
- Inspect seals, mating faces and clips for damage.
- Install the replacement hose, refit clips, and top up coolant.
- Bleed the system and check for leaks at operating temperature.
Required tools
- Trim tool or flat pick
- Hose clip pliers
- Socket set / torx bits
- Drain tray and funnel
- Coolant refill equipment
- Torque wrench where applicable
Estimated repair time: around 1.0 hour, depending on engine layout and access.
Garage labour estimate
Reference Photos
Warehouse and Dispatch
Collections and Contact
Collection by appointment: 7 days a week until 8pm, including bank holidays, subject to prior arrangement.
Fitting service: available subject to availability.
VAT: no VAT added where the Global VAT Scheme applies.
Shipping: worldwide shipping via eBay Global Shipping Programme where available at checkout.
Final Buyer Protection Copy
To avoid incorrect orders, please match the OE number, VIN and vehicle details before checkout. If you are unsure, message us with the full registration or VIN and we will verify the fitment where possible. Customers must ensure their checkout address is correct before paying, as address changes may not be possible after purchase.
By choosing a used original part, you are helping reduce waste, supporting local small business, and keeping usable components in circulation for longer. That is better for both the customer and the environment.
Part Pilot | Premium used parts | Clear fitment | Lower returns